The mayor of Washington, DC, declared a state of emergency Monday amid a record number of new local COVID infections — triggering booster-shot and renewed mask mandates. All government workers in DC will need to have a booster shot, losing the option to test out of the mandate under the emergency step, said Mayor Muriel Bowser. “All employees, contractors, interns, and grantees of DC Government must be fully vaccinated against COVID-19, and must have a booster,” Bowser tweeted. A new indoor-mask mandate for the district also will go into effect at 6 a.m. Tuesday and continue at least through Jan....